Background & Sustainability Challenges:
With the full implementation of the EU Single-Use Plastics (SUP) Directive, a leading Polish packaging firm faced a strategic transition from traditional PET/PP to biodegradable PLA (Polylactic Acid). However, PLA is notoriously 'temperamental'—it has an extremely narrow thermal processing window (typically only 15-20°C) and rheological properties that are hypersensitive to temperature fluctuations. Excess heat causes mold adhesion; insufficient heat leads to brittle cracking.